Quantitative Aptitude - Arithmetic Ability Questions

Q:

If A + B = 90 deg and Cos B = 1/3, then the value of Sin A is

A) 1/2 B) 1/4
C) 1/3 D) 2/3
 
Answer & Explanation Answer: C) 1/3

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Q:

The cost of 15 kg of groundnuts and 4 kg of cashews is Rs.7,000. The cost of 10 kg of cashews is equal to 25 kg of groundnuts. Find the cost of groundnut per kg.

A) Rs.320 B) Rs.700
C) Rs.540 D) Rs.280
 
Answer & Explanation Answer: D) Rs.280

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Q:

What is the sum of the first 12 terms of an arithmetic progression if the first term is -19 and last term is 36?

A) 192 B) 230
C) 102 D) 214
 
Answer & Explanation Answer: C) 102

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Q:

The angle of elevation of the top of a tower at a distance of 25 m from its foot is 60 deg. The approximate height of the tower is

A) 20.3 m B) 15.3 m
C) 36.3 m D) 43.3 m
 
Answer & Explanation Answer: D) 43.3 m

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Filed Under: Height and Distance
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Q:

If 2x - 6 ≤ x - 3 and 1+3x < 4x + 4, then x can take which of the following values?

A) 4 B) -4
C) -6 D) 2
 
Answer & Explanation Answer: D) 2

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Q:

What is the altitude of an equilateral triangle whose side is 12√3 cm?

A) 12 cm B) (15√3)/2 cm
C) (9√3)/2 cm D) 18 cm
 
Answer & Explanation Answer: D) 18 cm

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Filed Under: Volume and Surface Area
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Q:

The curved surface area of a hemisphere is 27.72 sq cm and volume is 19.404 cubic cm, find its radius?

A) 4.2 cm B) 2.1 cm
C) 0.7 cm D) 1.05 cm
 
Answer & Explanation Answer: B) 2.1 cm

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Q:

The least number that must be subtracted from 202 to make it a perfect square is

A) 10 B) 8
C) 14 D) 6
 
Answer & Explanation Answer: D) 6

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Filed Under: Problems on Numbers
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